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《Earthquake Research in China》 2010-02
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Influence of ground building's relative position on seismic response of subway structure

Li Fangjie1) Zhao Fengxin2) Zhang Yushan3) You Hongbing4) 1) Institute of Geophysics,China Earthquake Administration,Beijing 100081,China 2) China Earthquake Disaster Prevention Center,Beijing 100029,China  
By using finite element method and viscoelastic artificial boundary,a soil-structure interaction system is established to simulate the influence of ground building on the seismic response of subway structure. The conditions of different relative positions between ground building and subway structure are analyzed. The analysis is simplified as two dimensional dynamic time-history analysis in plane strain and the Kobe seismic time-history is selected as the inputting wave. The results indicate that when considering the existence of ground building,the story relative displacements and internal forces of subway structure are greatly changed. And the influence of ground building on subway structure exhibits a regular change with the increase of their relative position.
【Fund】: 国家科技支撑计划(2006BAC13B02);; 中国地震局地震行业科研专项经费(200708003)资助
【CateGory Index】: P315.73
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